fix(skip-objects): enlarged plate preview fails to load on auth-enabled instances (#1046)

The mini thumbnail wrapped its src with withStreamToken() (appends the
  short-lived camera-stream token, needed because <img> can't send an
  Authorization header), but the enlarged lightbox <img> used a bare
  ${status.cover_url}?view=top. On auth-enabled instances the backend
  rejected the unauthenticated request and the browser showed the
  broken-image icon. Wrap the enlarged src with withStreamToken() too.

frontend/src/components/SkipObjectsModal.tsx

@@ -311,7 +311,7 @@ export function SkipObjectsModal({ printerId, isOpen, onClose }: SkipObjectsModa
         >
           {status?.cover_url ? (
             <img
-              src={`${status.cover_url}?view=top`}
+              src={withStreamToken(`${status.cover_url}?view=top`)}
               alt={t('printers.printPreview')}
               className="w-full h-full object-contain rounded-lg bg-gray-900"
             />